In the school cafeteria, Belushi asks a bunch of 'frat-boys' and their goody-two-shoes girlfriends: "guess what I am?" Belushi then "stuffs his face" with cottage cheese, and punches his own 'puffed-up' cheeks as if "popping a zit." He blithly "answer" his own question with: "I'm a ZIT...get it?" At which point, a fight breaks out....at which point Belushi incites the entire cafeteria to riot by screaming: "FOOD FIGHT!"